/**
 * Copyright (C) 2010 D. Zoller, M. Richter, M. Blumenstein & W. Biller
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.googlecode.siafu.rest.utils;

import java.util.Arrays;
import java.util.Collection;

/**
 * @author D. Zoller
 * @version $Id: StringUtils.java,v 1.5 2010-06-14 20:44:24 nosebrain Exp $
 */
public class StringUtils {
	
	/**
	 * disabled; use static methods
	 */
	private StringUtils() {};
	
	/**
	 * Joins a collection with the delim
	 * 
	 * e.g "this", "is", "a", "test" and delim = " " returns "this is a test"
	 * 
	 * @param collection
	 * @param delim
	 * @return the joined string
	 */
	public static String join(Collection<?> collection, String delim) {
		final StringBuilder joinedCollection = new StringBuilder();
		
		for (Object object : collection) {
			joinedCollection.append(object);
			joinedCollection.append(delim);
		}
		
		// remove last delim
		return joinedCollection.substring(0, joinedCollection.length() - delim.length());
	}
	
	/**
	 * Joins the objects using {@link #join(Collection, String)} and " " as delim
	 * @param test
	 * @return the joined string
	 */
	public static String join(Object... test) {
		return join(Arrays.asList(test), " ");
	}
}
